Moistening apparatus for mine ventilation



Sept. 30, 1930. E T. LEDNUM MOISTENING APPARATUS FOR MINE VENTILATION I Filed May 31, 1927 m). W M N 3 MN N Patented Eiept. 3Q, 1936 i I i entree r'rss harem OFFICE EDMUND T. LEDN'UM, OF Bi I T'IF, MDNTANA IVIOIQTENING APPARATUS FOR MINE VENTILATION Application filed May 31 1927. Serial No. 195,505.

The present invention relates more parhood 17 having an outwardly tapered bore ticularly to ventilation equipment for min- 18, from which extends an outwardly flared ing, tunnel work and the like, and the object. discharge orifice 19. A stem 20, fixed to the is to provide means of a novel character by head 15, is provided with a conical valve which the air supplied in underground workelement 21 that is located in the outer end 5 ings will be moistened, thus moistening the of the tapered bore 18 and is adapted to profine dust particles ordinarily present and ject into the orifice 19 when the hood is causing them to settle from the air, while at screwed rea ardly upon the head A the same time lowering the temperature and cap 22 is screwed upon the rear end of the in contributing generally to the protection of hood lTand surrounds the pipe 14. Interthe safety, health and welfare of the miners posed between this cap and the head 15 and and other workmen. nozzle hood 17 may be packing as indicated In the accompanying drawings: at 28. The pipe 14 is supplied with both air Figure 1 is a longitudinal sectional view and water, supply pipes 24 and 25 leading through a portion of a ventilator, showing from any suitable sources of supply (not 65 the novel structure, shown) being connected to said pipe 14. Figure 2 is a cross sectional view on the These pipes 24 and 25 are also provided with line 22 of Figure 1, controlling valves 26 and 27. The lower Figure 3 is a longitudinal sectional View side of the conduit section 8 is preferably of the spray nozzle, provided with a gutter 28 having a drain 7t Figure 4 is a front elevation of the head of opening 29. such nozzle, In using this device, the nozzle preferably Figure 5 is a sectional View on the line 5-5 is faced against the direction of the air curof Figure 4, rent. Air and water in the desired propor- Figure 6 is a sectional view through the tions are admitted to the pipe 14, and flowing cap of said nozzle and therefrom through the openings 16 will be Figure 7 is a view in elevation of the sprayed from the hose nozzle as indicated in same. Figure 1. The character of this spray can be A section of a mine ventilating conduit is 1 .gdily d t i d b varying th iti 30 shown in Figures 1 and 2, i b g UnClBY- of the hood with respect to the valve element stood that this is part Of e equipm 2 1. In fact said element may be used to endi ti air into the workings or undertirely close the discharge orifice ot' the noz grO nd Cham er Of 3 1111116 Or the hhll The zle i f desired. With this construction the Section, whic s designated is pr f r y ventilating air delivered to a mine is mois- 21- Shee metal tube which is Coupled in El line tcned. thus causing it to moisten the dust leading from the fan to the point of delivery. ad so th t th ill gpavitatg At th This section 8 has located within it a. suitable Same m the n. 0001561 and the result pp 9 3] Spray, The of the moistening means is to add. to the 1 For?) preferagjllilconilsts its comfort and welfare of the workmen.

)orm'acenra c1s3osec s31 co ar l. 1 in this? collar is de tachiibly fitted the nozzle Flinn ioregolilg 1t 1S thought than the construction, operation and many advantages g ggg gi 33 2 Osman by the yleldn of the herein described invention will be ap D C L a A supply pipe 14 extending through one parent to those skilled in the art, without 45 side of the conduit section 8, is connected to mrther clescnptloni m 1t be understood the nozzle 10. The nozzle consists of a head thahmrlous h g the S1Ze p P 15 th d d on th d f th i d portion and minor details of construction may vided with a plurality of orifices 16 in combe resorted to without departing from the munieation with the bore of the pipe. Adspirit or sacrificing any of the advantages of o justably threaded on the head 15, is a nozzle the invention. 1(10 Will \Vhat I claim, is:

1. In a mine ventilating means, the combination with a tube section having open ends for coupling into a line leading from a fan to the point of delivery, of a split collar within the tube and between its ends, substantial- 1y radial spider arms connected to different parts of the collar on opposite sides of the s .lit and to dill'erent sides of the tube section within the ends thereof, a nozzle fitted into and clamped by said collar, and a supply conduit extending through the side wall of the tube between its ends and connected to the nozzle.

2. In a mine ventilating means, the combination with a substantially cylindrical short metal tube having means at its ends for coupling into a line leading from a fan to the point of delivery, said tube having a longitudinal outset rib on its lower side forming an internal longitudinal gutter and an opening through said rib providing a drain outlet, a support located within the tube and between its end, a nozzle mounted on the support, and means extending through the side wall for supplying water to the nozzle.

In testimony whereof, I affix iny signatiin'e.

EDMUND T. LEDNUM. 

